1 / | | 3*x - 1 | ------- dx | 2 | x + 1 | / 0
Integral((3*x - 1)/(x^2 + 1), (x, 0, 1))
/ | | 3*x - 1 | ------- dx | 2 | x + 1 | /
2*x 3*------------ /-1 \ 2 |---| 3*x - 1 x + 0*x + 1 \ 1 / ------- = -------------- + --------- 2 2 2 x + 1 (-x) + 1
/ | | 3*x - 1 | ------- dx | 2 = | x + 1 | /
/ | | 2*x 3* | ------------ dx | 2 / | x + 0*x + 1 | | | 1 / - | --------- dx + -------------------- | 2 2 | (-x) + 1 | /
/ | | 2*x 3* | ------------ dx | 2 | x + 0*x + 1 | / -------------------- 2
2 u = x
/ | | 1 3* | ----- du | 1 + u | / 3*log(1 + u) ------------- = ------------ 2 2
/ | | 2*x 3* | ------------ dx | 2 | x + 0*x + 1 | / 2\ / 3*log\1 + x / -------------------- = ------------- 2 2
/ | | 1 - | --------- dx | 2 | (-x) + 1 | /
v = -x
/ | | 1 - | ------ dv = -atan(v) | 2 | 1 + v | /
/ | | 1 - | --------- dx = -atan(x) | 2 | (-x) + 1 | /
/ 2\ 3*log\1 + x / C - atan(x) + ------------- 2
/ | / 2\ | 3*x - 1 3*log\1 + x / | ------- dx = C - atan(x) + ------------- | 2 2 | x + 1 | /
pi 3*log(2) - -- + -------- 4 2
=
pi 3*log(2) - -- + -------- 4 2
-pi/4 + 3*log(2)/2
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.